Spectacles set with detachable magnetic shelter frame

ABSTRACT

A spectacles set includes a primary spectacle frame which includes two nose supports thereof and a detachable shelter frame adapted for mounting in front of the primary spectacle frame. The detachable shelter frame includes a shelter frame for supporting two auxiliary lenses and a pair of magnetic attachment arrangements connected to the shelter frame. Each of the magnetic attachment arrangements includes a supporting arm extending rearwardly from the shelter bridge to securely mount the shelter frame in front of the primary spectacle frame and a magnetic seat which is connected to the supporting arm and extended to magnetically attach the nose supports of the primary spectacle frame so as to hold the shelter frame on the primary spectacle frame in position.

CROSS-REFERENCE OF RELATED APPLICATION

This is a Continuation-In-Part application of a non-provisionalapplication having an application Ser. No. 10/278,497 and a filing dateof Oct. 24, 2002 U.S. Pat. No. 6,783,233.

BACKGROUND OF THE PRESENT INVENTION

1. Field of Invention

The present invention relates to a spectacle frame, and moreparticularly to a spectacles set, which comprises a detachable magneticshelter frame adapted for detachably mounting in front of a primaryspectacle frame by means of magnetic attraction.

2. Description of Related Arts

Shelter frames are widely used today. A conventional shelter frame, suchas clip-on sunglasses, comprises a plurality of clipping claws fordetachably mounted on a shortsighted or farsighted sunglasses so thatthe wearer does not need to carry and pay for another pair ofshortsighted or farsighted sunglasses. However, the metal made clippingclaws may scratch the lenses of the primary eyeglasses during theattaching operation. Also, the wearer requires both hands to align andengage the conventional clip-on sunglasses on the primary eyeglasses incorrect position. It is troublesome and dangerous for a wearer to usehis or her both hands to wear such clip-on sunglasses on the regularglasses while he or she is driving.

In order to solve the problem of the above mentioned clip-on sunglasses,magnetic attachment is recently introduced into the eyeglasses industry,such as U.S. Pat. Nos. 5,416,537, 5,568,207, 5,642,177, 5,737,054, and5,975,691. For example, in U.S. Pat. No. 5,568,207, a primary pair ofmagnet members is affixed on two side extensions of a primary spectacleframe respectively. A shelter frame, such as sunglasses, includes a pairof arms for resting over the upper side extensions for preventing theshelter frame from moving downward relative to the primary spectacle forengaging with the primary magnet members of the primary spectacle frameso as to stably attach the shelter frame to the primary spectacle frame.However, the users have to align two pairs of magnet members. If theauxiliary magnet members of the sunglasses are misaligned with theprimary magnet members of the primary spectacle frame, the sunglass willfall down from the primary spectacle frame easily.

Moreover, the magnet members are firmly affixed to the spectacle frameof the primary spectacle. Once the spectacle frame is accidentally bentits shape, the shelter frame may not precisely mounted on the primaryspectacle by means of the magnet attachment. Furthermore, the spectacleframe of the primary spectacle must be altered to fit the magnet membersthereto such that the magnet members will destroy the aestheticappearance of the primary spectacle.

SUMMARY OF THE PRESENT INVENTION

A main object of the present invention is to provide a spectacles setwhich comprises a detachable shelter frame adapted for detachablymounting in front of a primary spectacle frame by means of magneticattachment arrangement, so as to precisely interlock the detachableshelter frame with the primary spectacle frame.

Another object of the present invention is to provide a spectacles setwherein each of the nose supports of the primary spectacle frame is madeof a kind of metal having magnetic attraction ability such that theprimary spectacle frame does not require to change the originalstructural design to incorporate with the detachable shelter frame.

Another object of the present invention is to provide a spectacles set,wherein the detachable shelter frame adapted for precisely and easilymounting in front of the primary spectacle frame by means of magneticattachment arrangement without the risk of scratching the lenses of theprimary spectacle frame.

Another object of the present invention is to provide a spectacles setwith detachable shelter frame, wherein the magnetic attachmentarrangement is hidden behind the frame body of the primary spectacleframe and located at the nose supports of the primary spectacle frame soas to keep the aesthetic appearance of the primary spectacle frame.

Another object of the present invention is to provide a spectacles setwith detachable shelter frame, wherein the nose supports are adapted tobe adjusted their positions with respect to the primary spectacle framein order to fit the wearer, the wearer may self-adjust the magneticattachment arrangement to align with the detachable shelter frame eventhe shape of the primary spectacle frame is slightly distorted.

Another object of the present invention is to provide a spectacles setwith detachable shelter frame, wherein two supporting arms of themagnetic attachment arrangement ride on the primary bridge of theprimary spectacle, so as to support the detachable shelter frame andfurther prevent the downward and sideward movement of the detachableshelter frame with respect to the primary spectacle frame.

Another object of the present invention is to provide a spectacles setwith detachable shelter frame, wherein the two supporting arms of themagnetic attachment arrangement are further extended downwardly to mounton the primary bridge of the primary spectacle so as to further preventany frontward or rearward movement of the detachable shelter frame withrespect to the primary spectacle frame.

Another object of the present invention is to provide a spectacles set,wherein the wearer may merely use one hand to attach or detach thedetachable shelter frame during exercising or driving.

Another object of the present invention is to provide a spectacles setwith detachable shelter frame, wherein no magnet is needed to embed intothe primary spectacle frame such that no magnetic field is generatedaround the primary spectacle frame to affect the wearer's health whilehe or she normally wears the primary spectacle frame.

Accordingly, in order to accomplish the above objects, the presentinvention provides a spectacles set comprising a primary spectacle frameand a detachable shelter frame adapted for mounting in front of theprimary spectacle frame.

The primary spectacle frame comprises a frame body for mounting a pairof lenses in position, wherein the frame body comprises a primary bridgeconnected between the two lenses, two nose supports each of which hasmagnetic attraction ability extended from two inner sides of the lensesrespectively, and two side extensions provided at two outer sides of thelenses for coupling a pair of temples respectively.

The detachable shelter frame comprises a shelter frame for supportingtwo auxiliary lenses and a pair of magnetic attachment arrangementsconnected to the shelter frame, wherein each of the magnetic attachmentarrangements comprises a supporting arm extending rearwardly from aninner side of the shelter frame towards the respective nose support anda magnetic seat which is connected to the supporting arm and extended tomagnetically attach the respective nose support of the primary spectacleframe so as to securely hold the shelter frame in front of the primaryspectacle frame.

In a preferred embodiment of the present invention, the shelter frameincludes a shelter bridge connected between the two auxiliary lenses andeach of the supporting arms of the magnetic attachment arrangements hasa riding portion rearwardly extended from the shelter bridge for ridingon the primary bridge of the primary spectacle frame and a mountingportion downwardly extended from the riding portion to support themagnetic seat thereof to attach with respective nose support of theprimary spectacle frame.

These and other objectives, features, and advantages of the presentinvention will become apparent from the following detailed description,the accompanying drawings, and the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a spectacles set comprising a primaryspectacle frame incorporated with a detachable shelter frame accordingto a first preferred embodiment of the present invention.

FIG. 2 is a perspective view of the spectacles set according to theabove first preferred embodiment of present invention, illustrating thedetachable shelter frame being mounted in front of the primary spectacleframe.

FIG. 3 illustrates a first alternative mode of the spectacles setaccording to the above first preferred embodiment of the presentinvention.

FIG. 4 illustrates a second alternative mode of the spectacles setaccording to the above first preferred embodiment of the presentinvention.

FIG. 5 illustrates a third alternative mode of the spectacles setaccording to the above first preferred embodiment of the presentinvention.

FIG. 6 illustrates a fourth alternative mode of the spectacles setaccording to the above first preferred embodiment of the presentinvention.

FIG. 7 illustrates a fifth alternative mode of the spectacles setaccording to the above first preferred embodiment of the presentinvention.

FIG. 8 is a perspective view of a spectacles set according to a secondpreferred embodiment of the present invention.

FIG. 9 is a perspective view of the magnetic attachment arrangement ofthe spectacles set according to the above second preferred embodiment ofthe present invention.

FIG. 10 illustrates an alternative mode of the spectacles set accordingto the above second preferred embodiment of the present invention.

FIG. 11 is a perspective view of a spectacles set according to a thirdpreferred embodiment of the present invention.

FIG. 12 is a sectional view of the spectacles set according to the abovethird preferred embodiment of the present invention, illustrating thedetachable shelter frame being mounted in front of the primary spectacleframe.

FIG. 13 illustrates a first alternative mode of the spectacles setaccording to the above third preferred embodiment of the presentinvention.

FIG. 14 illustrates a second alternative mode of the spectacles setaccording to the above third preferred embodiment of the presentinvention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIG. 1 of the drawings, a spectacles set according to afirst preferred embodiment of the present invention is illustrated,wherein the spectacles set comprises a primary spectacle frame 10 and adetachable shelter frame 20 adapted for mounting in front of the primaryspectacle frame 10.

The primary spectacle frame 10, such as a conventional spectacle frame,comprises a frame body 11 for mounting a pair of lenses 121, 122 inposition, wherein the frame body 11 comprises a primary bridge 111connected between the two lenses 121, 122, two nose supports 13, 14extended from two inner sides of the lenses 121, 122 respectively, andtwo side extensions provided at two outer sides of the lenses 121, 122for coupling a pair of temples respectively.

Each of the nose supports 13, 14 comprises a supporting member 131, 141and an extension arm 132, 142 which has a distal end portion extendedfrom the supporting member 131, 141 and a root end portion extended fromthe inner side of the respective lens 121, 122, wherein each of theextension arms 132, 142 is made of a kind of metal having magneticattraction ability, such as mild steel, low carbon steel and high gradesteel, which is attractive to magnetic material such as permanentmagnet.

According to the preferred embodiment, the two extension arms 132, 142of the nose supports 13, 14 are integrally and rearwardly extended fromthe frame body 11 wherein each of the extension arms 132, 142 is bent toform a shoulder portion 1321, 1421 between the distal end portion andthe root end portion. As shown in FIG. 1, each of the extension arms132, 142 is made in reverse U-shape wherein the shoulder portion 1321,1421 is formed at a top side of the respective extension arm 132, 142 tomagnetically attract with the detachable shelter frame 20. In otherwords, the primary spectacle frame 10 does not require modifying itsoriginal structure for mounting the detachable shelter frame 20 thereon.

The frame body 11 of the primary spectacle frame 10 can be constructedas the conventional spectacle frame to have a pair of lens rims as shownin FIG. 1 or the rimless frame that the primary bridge 111 and the twoside extensions 15, 16 are directly fastened to the edges of the twolenses 121, 122.

The detachable shelter frame 20 comprises a shelter frame 21 forsupporting two auxiliary lenses 221, 222. The shelter frame 21 comprisesa shelter bridge 211 extended between the two auxiliary lenses 221, 222and a pair of magnetic attachment arrangements 24, 25 connected to theshelter frame 21 for holding the shelter frame 21 in front of theprimary spectacle frame 10 in position.

As shown in FIG. 1, each of the magnetic attachment arrangements 24, 25comprises a supporting arm 241, 251 extending rearwardly from an innerside of the shelter frame 21 towards the respective nose support 13, 14and a magnetic seat 242, 252 which is connected to the supporting arm241, 251 and extended to magnetically attach the respective nose support13, 14 of the primary spectacle frame 10 so as to securely hold theshelter frame 21 of the detachable shelter frame 20 in front of theframe body 11 of the primary spectacle frame 10.

Each of the magnetic seats 242, 252 comprises a magnetic housing 243,253 rearwardly extended from the respective supporting arm 241, 251wherein each magnetic seat 242, 252 is made of non-magnetic material orsoft-magnetic metal having magnetic attraction ability such as mildsteel, low carbon steel and high grade steel and a magnet 244, 254mounted in the magnetic housing 243, 253, which is arranged to facetoward and align with the respective nose support 13, 14 of the framebody 11 when the detachable shelter frame 20 is mounted in front of theprimary spectacle frame 10.

According to the preferred embodiment, the two supporting arms 241, 251are in L-shaped and extended from two end portions of the shelter bridge211, wherein each of the supporting arms 241, 251 comprises a ridingportion 2411, 2511 rearwardly extended from the shelter bridge 211 toride on the primary bridge 111 and a mounting portion 2412, 2512downwardly and integrally extended from a rear end of the respectiveriding body 2411, so that the riding portions of the supporting arms241, 251 are capable of substantially riding on the primary bridge 111when the detachable shelter frame 20 is mounted in front of the primaryspectacle frame 10 so as to support the detachable shelter frame 20 andfurther prevent any downward and sideward movement of the detachableshelter frame 20 with respect to the primary spectacle frame 10.

In other words, the two supporting arms 241, 251 function as a bridgeclip to ride on top of the primary bridge 111 of the frame body 11 forengaging with the primary bridge 111 so as to securely interlock theshelter frame 21 of the detachable shelter frame 20 in front of theprimary spectacle frame 10.

In addition, the two mounting portions 2412, 2512 of the two supportingarms 241, 251 of the magnetic attachment arrangement 24, 25 are furtherextended downwardly to mount on the primary bridge 111 of the primaryspectacle frame 10 that may further prevent any frontward or rearwardmovement of the detachable shelter frame 20 with respect to the primaryspectacle frame 10, so that besides the magnetic attachment between thetwo magnetic seats 242, 252 and the two magnetic holders 152, 162respectively, the detachable shelter frame 20 can further be securelymounted and supported on the primary spectacle frame 10.

As shown in FIG. 2, the magnetic seats 242, 252 are connected to bottomends of the mounting portions 2412, 2512 of the supporting arms 241, 251respectively to magnetically attach to the shoulder portions 1321, 1421of the extension arms 132, 142 of the nose supports 13, 14 respectively.Each of magnetic housings 243, 253, having a reverse U-shaped crosssection, is downwardly and suspendedly affixed to the bottom (rear) endof the mounting portion 2412, 2512 of the respective supporting arm 241,251.

Each magnet 244, 254 has a thickness smaller than a depth of therespective magnetic housing 243, 253 so as to define an engaging groove245, 255, when the magnet 244, 254 is embedded in the magnetic housing243, 253 for fittedly engaging with the respective shoulder portion1321, 1421 of the respective nose support 13, 14. In other words, theengaging groove 245, 255 is defined between two sidewalls of therespective magnetic housing 243, 253.

In order to mount the detachable shelter frame 20 in front of theprimary spectacle frame 10, the magnetic seats 242, 252 are respectivelyattached to the two nose supports 13, 14 by magnetically engaging thetwo shoulder portions 1321, 1421 of the extension arms 13, 14 in the twoengaging grooves 245, 255 respectively. In addition, when the magnets244, 254 are mounted in the magnetic housing 243, 253, the magnet fieldpresent around the two magnets 244, 254 not only guide the magneticseats 242, 252 toward the align with the extension arms 132, 142 of thenose supports 13, 14 but also ensure the magnetic seats 242, 252 firmlyattached with the extension arms 132, 142 of the nose supports 13, 14,as shown in FIG. 2.

FIG. 3 illustrates a first alternative mode of the magnetic seat 242A,252A wherein each of the magnetic seats 242A, 252A comprises a magnetichousing 243A, 253A extended from the bottom end of the respectivesupporting arm 241, 251 and two magnets 244A, 254A mounted in themagnetic housing 243A, 253A, which is arranged to face toward and alignwith the respective nose support 13, 14 of the frame body 11.

As shown in FIG. 3, each of the magnetic housing 243A, 253A, having areverse U-shaped cross section, is downwardly and suspendedly affixed tothe bottom end of the respective supporting arm 241, 251, wherein thetwo magnets 244A, 254A are received at two sidewalls of the respectivemagnetic housing 243A, 253A to define an engaging groove 245A, 255Abetween the two sidewalls thereof. Accordingly, the two magnets 244A,254A are embedded at two sidewalls of the respective magnetic housing243A, 253A wherein the magnetic seats 242A, 252A are respectivelyattached to the two nose supports 13, 14 by magnetically engaging thetwo shoulder portions 1321, 1421 of the extension arms 13, 14 in the twoengaging grooves 245A, 255A respectively.

FIG. 4 illustrates a second alternative mode of the magnetic seat 242B,252B wherein each of the magnetic seats 242B, 252B comprises a magnetichousing 243B, 253B extended from the bottom end of the respectivesupporting arm 241, 251 and a magnet 244B, 254B mounted in the magnetichousing 243B, 253B, which is arranged to face toward and align with therespective nose support 13, 14 of the frame body 11.

As shown in FIG. 4, each of the magnetic housing 243B, 253B having aL-shaped cross section defines an outer sidewall to bias against anouter side of the shoulder portion 1321, 1421 of the respective nosesupport 13, 14, wherein the magnet 244B, 254B is received at the outersidewall of the respective magnetic housing 243B, 253B to define anengaging groove 245B, 255B within an upper wall and the outer sidewallin such a manner that the magnetic seats 242B, 252B are respectivelyattached to the two nose support 13, 14 by magnetically engaging the twoshoulder portions 1321, 1421 of the extension arms 13, 14 in the twoengaging grooves 245B, 255B respectively.

FIG. 5 illustrates a third alternative mode of the magnetic seat 242C,252C wherein each of the magnetic seats 242C, 252C comprises a magnetichousing 243C, 253C extended from the bottom end of the respectivesupporting arm 241, 251 and a magnet 244C, 254C mounted in the magnetichousing 243C, 253C, which is arranged to face toward and align with therespective nose support 13, 14 of the frame body 11.

As shown in FIG. 5, each of the magnetic housing 243C, 253C having aL-shaped cross section defines an inner sidewall to bias against aninner side of the shoulder portion 1321, 1421 of the respective nosesupport 13, 14, wherein the magnet 244C, 254C is received at the outersidewall of the respective magnetic housing 243C, 253C to define anengaging groove 245C, 255C within an upper wall and the inner sidewallin such a manner that the magnetic seats 242C, 252C are respectivelyattached to the two nose support 13, 14 by magnetically engaging the twoshoulder portions 1321, 1421 of the extension arms 13, 14 in the twoengaging grooves 245C, 255C respectively.

FIG. 6 illustrates a fourth alternative mode of the magnetic seat 242D,252D, wherein the shoulder portion 1321D, 1421D is formed at a rear sideof the respective extension arm 132D, 142D to magnetically attract withthe detachable shelter frame 20D.

Each of the magnetic seats 242D, 252D comprises a magnetic housing 243D,253D rearwardly extended from the respective supporting arm 241D, 251Dand a magnet 244D, 254D mounted in the magnetic housing 243D, 253D,which is arranged to face toward and align with the shoulder portion1321D, 1421D of the respective nose support 13D, 14D of the frame body11D when the detachable shelter frame 20D is mounted in front of theprimary spectacle frame 10D.

Each magnet 244D, 254D has a thickness smaller than a depth of therespective magnetic housing 243D, 253D so as to define an engaginggroove 245D, 255D facing frontward when the magnet 244D, 254D isembedded in the magnetic housing 243D, 253D for fittedly engaging withthe respective shoulder portion 1321D, 1421D of the respective nosesupport 13D, 14D, such that the magnetic seats 242D, 252D arerespectively attached to the two nose supports 13D, 14D by magneticallyengaging the two shoulder portions 1321D, 1421D of the extension arms13D, 14D in the two engaging grooves 245D, 255D respectively.

As shown in FIG. 6, each of the extension arms 132D, 142D is bent toform the shoulder portion 1321D, 1421D at an inclined manner whereineach of the supporting arms 241D, 251D is rearwardly extended from theshelter frame 21D to inclinedly support the magnetic seat 242D, 252Dwith respect to the shoulder portion 1321D, 1421D of the nose support13D, 14D.

It is worth to mention that each of the magnetic seats 242D, 252D can bemodified its structure as shown in FIGS. 3, 4, and 5 in order tomagnetically engage the magnetic seats 242D, 252D with the shoulderportions 1321D, 1421D of the nose supports 13D, 14D respectively.

FIG. 7 illustrates a fifth alternative mode of the spectacles setaccording to the preferred embodiment, wherein each extension arm 132E,142E of the nose supports 13E, 14E is made in U-shape to connect thesupporting member 131E, 141E with the frame body 11. The shoulderportion 1321E, 1421E is formed at a lower side of the respectiveextension arm 132E, 142E to magnetic attract with the detachable shelterframe 20. Accordingly, each of the magnetic seats 242, 252 can bemodified to form a structure, as shown in FIGS. 1, 3, 4, and 5, tomagnetically engage with the shoulder portion 1321E, 1421E of therespective nose support 13E, 14E.

As shown in FIG. 8, a spectacles set according to a second embodimentillustrates an alternative mode of the first embodiment and itsalternative modes, wherein the primary spectacle frame 10F and thedetachable shelter frame 20F have the similar structural components asshown in the first embodiment, expect the nose supports 13F, 14F and themagnetic seats 242F, 252F.

As shown in FIGS. 8 and 9, each of the nose supports 13F, 14F comprisesa supporting member 13 1F, 141F and an extension arm 132F, 142F whichhas a distal end portion extended from the supporting member 131F, 141Fand a root end portion extended from the inner side of the respectivelens 121F, 122F, wherein each of the extension arm 132F, 142F is made ofa kind of metal having magnetic attraction ability, such as mild steel,low carbon steel and high grade steel, which is attractive to magneticmaterial such as permanent magnet. Each of the extension arms 132F, 142Fis bent to form an angled neck portion 1321F, 1421F between the distalend portion and the root end portion.

Each of the magnetic seats 242F, 252F comprises a magnetic housing 243F,253F rearwardly extended from the respective supporting arm 241F, 251Fwherein each magnetic seat 242F, 252F is made of non-magnetic materialor soft-magnetic metal having magnetic attraction ability such as mildsteel, low carbon steel and high grade steel and a magnet 244F, 254Fmounted in the magnetic housing 243F, 253F, which is arranged to facetoward and align with the respective nose support 13F, 14F of the framebody 11F when the detachable shelter frame 20F is mounted in front ofthe primary spectacle frame 10F.

Each magnet 244F, 254F has a thickness smaller than a depth of therespective magnetic housing 243F, 253F to define an engaging groove245F, 255F within an surrounding wall of the magnetic housing 243F, 253Fand a bottom side of the magnet 244F, 254F when the magnet 244F, 253F isembedded in the magnetic housing 243F, 253F for magnetically engagingwith the angled neck portion 1321F, 1421F of the respective nose support13F, 14F.

As shown in FIG. 9, each of the magnetic housings 243F, 253F further hasat least an edge opening 246F, 256F formed at the surrounding wall tocommunicate with the engaging groove 245F, 255F for fittedlyinterlocking with the angled neck portion 1321F, 1421F of the respectivenose support 13F, 14F. In other words, the detachable shelter frame 20Fis securely mounted in front of the primary spectacle frame 10F by notonly magnetically mounting the magnetic seats 242F, 252F on the nosesupports 13F, 14F within the engaging grooves 245F, 255F respectivelybut also interlocking the angled neck portions 1321F, 1421F of the nosesupport 13F, 14F with the edge opening 246F, 256F. In addition, thesupporting arms 241F, 251F are arranged to ride on the primary bridge111 of the frame body 11F to further interlock the detachable shelterframe 20F in front of the primary spectacle frame 10F.

It is worth to mention that the width of the edge opening 246F, 256F isgradually reduced towards the engaging groove 245F, 255F such that whenthe detachable shelter frame 20F is mounted in front of the primaryspectacle frame 10F, the edge opening 246F, 256F substantially guidesthe angled neck portion 1321F, 1421F of the nose support 13F, 14F toengage with the engaging groove 245F, 255F of the magnetic seat 242F,252F. In other words, the structure of the edge opening 246F, 256F isadapted to self-adjust the alignment between the nose support 13F, 14Fand the magnetic seat 242F, 252F so as to enhance the engagement betweenthe detachable shelter frame 20F and primary spectacle frame 10F.

FIG. 10 illustrates an alternative mode of the spectacles set accordingto the second embodiment, wherein the supporting arms 241G, 251G areconstructed to form the shelter bridge 211F for riding on the primarybridge 111G of the frame body 11G to interlock the detachable shelterframe 20G in front of the primary spectacle frame 10G.

Accordingly, each of the extension arms 132F, 142F is bent outwardly toform the angled neck portion 1321F, 1421F to fittedly engage with theedge opening 246F, 256F of the respective magnetic seat 242F, 252F asshown in FIG. 9. Correspondingly, each of the extension arms 132G, 142Gcan be modified to bend inwardly to form the angled neck portion 1321G,1421G not only to magnetically attach to the respective magnetic seat242G, 252G but also to fittedly engage with the edge opening 246G, 256Gof the respective magnetic seat 242G, 252G, as shown in FIG. 10.

As shown in FIG. 11, a spectacles set according to a third embodimentillustrates another alternative mode of the first and secondembodiments, which has a similar structure of the above the first andsecond embodiments and their alternative modes except the nose supports13H, 14H.

Each of the nose supports 13H, 14H comprises a supporting member 131H,141H and an extension arm 132H, 142H which has a distal end portionextended from the supporting member 131H, 141H and a root end portionextended from the inner side of the respective lens 121H, 122H, whereineach of the extension arm 132H, 142H is made of a kind of metal havingmagnetic attraction ability, such as mild steel, low carbon steel andhigh grade steel, which is attractive to magnetic material such aspermanent magnet.

Each of the magnetic attachment arrangements 24H, 25H comprises asupporting arm 241H, 251H extending rearwardly from an inner side of theshelter frame 21H towards the respective nose support 13H, 14H forriding on the primary bridge 111H of the frame body 11H and a magneticseat 242H, 252H which is connected to the supporting arm 241H, 251H andextended to magnetically attach the respective nose support 13H, 14H ofthe primary spectacle frame 10H so as to securely hold the shelter frame21H of the detachable shelter frame 20H in front of the frame body 11Hof the primary spectacle frame 10H.

Each of the magnetic seats 242H, 252H comprises a magnetic housing 243H,253H rearwardly extended from the respective supporting arm 241H, 251Hwherein each magnetic seat 242H, 252H is made of non-magnetic materialor soft-magnetic metal having magnetic attraction ability such as mildsteel, low carbon steel and high grade steel and a magnet 244H, 254Hmounted in the magnetic housing 243H, 253H, which is arranged to facetoward and align with the respective nose support 13H, 14H of the framebody 11H when the detachable shelter frame 20H is mounted in front ofthe primary spectacle frame 10H.

Each magnet 244H, 254H has a thickness smaller than a depth of therespective magnetic housing 243H, 253H so as to define an engaginggroove 245H, 255H, when the magnet 244H, 254H is embedded in themagnetic housing 243H, 253H for fittedly engaging with the respectivedistal end portion of the respective nose support 13H, 14H.

It is worth to mention that the distal end portion of each of theextension arms 132H, 142H forms as an engaging member 1321H, 1421Hfittedly received in the engaging groove 245H, 255H of the respectivemagnetic seat 242H, 252H so as to alignedly guide the magnetic seats242H, 252H to magnetically engage with the extension arms 132H, 142Hrespectively, as shown in FIG. 12.

FIG. 13 illustrates a first alternative mode of the spectacles setaccording to the first, second, third embodiments and their alternativemodes, wherein the two supporting arms 241J, 251J are rearwardlyextended from two lower portions of two inner sides of the shelter frame21J respectively towards the extension arms 132J, 142J.

Each of magnetic housings 243J, 253J, having a U-shaped cross section,is rearwardly and suspendedly affixed to the rear end of the respectivesupporting arm 241J, 251J to fittedly engage with the shoulder portion1321J, 1421J of the respective extension arm 132J, 142J at a positionbetween a distal end portion and a root end portion.

As shown in FIG. 13, the shelter frame 21J further comprises a bridgeclip 212J extended between the two auxiliary lenses 221J, 222J fordetachably riding on the primary bridge 111J so as to securely mount thedetachable shelter frame 20J in front of the primary spectacle frame10J.

FIG. 14 illustrates a second alternative mode of the spectacles set,wherein the shelter frame 21K of the detachable shelter frame 20K ismade of plastic instead of conventional metal frame body. The twosupporting arms 241K, 251K are integrally extended from two inner sidesof the auxiliary lenses 221K, 222K towards the nose supports 13K, 14K.

Each of the magnetic seats 242K, 252K comprises a magnetic housing 243K,253K provided at an outer side of the respective supporting arm 241K,251K wherein each magnetic seat 242K, 252K and a magnet 244K, 254Kmounted in the magnetic housing 243K, 253K, which is arranged to facetoward and align with the respective nose support 13K, 14K of the framebody 11K when the detachable shelter frame 20K is mounted in front ofthe primary spectacle frame 10K.

As shown in FIG. 14, the magnetic seats 242K, 252K are arranged tomagnetically attach at the root end portions of the extension arms 132K,142K respectively when the detachable shelter frame 20K is mounted infront of the primary spectacle frame 10K. It is worth to mention thatthe root end portion of each of the extension arms 132K, 142K ispreferably bent to form a loop shape to enlarge its contacting surfaceto enhance the magnetic connection between the magnetic seat 242K, 252Kand the extension arm 132K, 142K.

In addition, the shelter frame 21K further comprises a bridge clip 212Kextended between the two auxiliary lenses 221K, 222K for detachablyriding on the primary bridge 111K so as to securely mount the detachableshelter frame 20K in front of the primary spectacle frame 10K.

One skilled in the art will understand that the embodiment of thepresent invention as shown in the drawings and described above isexemplary only and not intended to be limiting.

It will thus be seen that the objects of the present invention have beenfully and effectively accomplished. It embodiments have been shown anddescribed for the purposes of illustrating the functional and structuralprinciples of the present invention and is subject to change withoutdeparture form such principles. Therefore, this invention includes allmodifications encompassed within the spirit and scope of the followingclaims.

1. A spectacles set comprising a primary spectacle frame and adetachable shelter frame adapted for detachably mounting in front ofsaid primary spectacle frame: said primary spectacle frame comprises aframe body mounting a pair of lenses in position, wherein said framebody comprises a primary bridge connected between said two lenses, twonose supports extended from two inner sides of said lenses respectively,and two side extensions provided at two outer sides of said lenses forcoupling a pair of temples respectively; each of said nose supportscomprising a supporting member and an extension arm which has a distalend portion extended from said supporting member and a root end portionextended from said inner side of said respective lens, wherein each ofsaid extension arms has magnetic attraction ability; and said detachableshelter frame comprising a shelter frame for supporting two auxiliarylenses and a pair of magnetic attachment arrangements connected to saidshelter frame, wherein each of said magnetic attachment arrangementscomprises a supporting arm extending rearwardly from an inner side ofsaid shelter frame towards said respective extension arm and a magneticseat which is connected to said supporting arm and extended tomagnetically attach said respective extension arm of said primaryspectacle frame so as to securely hold said shelter frame in front ofsaid primary spectacle frame.
 2. The spectacles set, as recited in claim1, wherein each of said extension arms is bent to form a shoulderportion between said distal end and said root end portion tomagnetically engage with said respective magnetic seat, so as tomagnetically mount said detachable shelter frame in front of saidprimary spectacle frame.
 3. The spectacles set, as recited in claim 2,wherein said two supporting arms are in L-shaped and extended from saidshelter frame to ride on said primary bridge, wherein said two magneticseats comprises a magnetic housing extended from a rear end of saidrespective supporting arm towards said respective extension arm and amagnet mounted in said magnetic housing which is arranged to face towardand align with said shoulder portion of said respective extension arm ofsaid nose support when said detachable shelter frame is mounted in frontof said primary spectacle frame.
 4. The spectacles set, as recited inclaim 3, wherein each of said magnets has a thickness smaller than adepth of said respective magnetic housing to define an engaging groovewhen said magnet is embedded in said magnetic housing for fittedlyengaging with said shoulder portion of said respective nose support. 5.The spectacles set, as recited in claim 4, wherein each of said magneticseats, having a U-shaped cross section, is downwardly and suspendedlyaffixed to said rear end of said respective supporting arm to fittedlyengage with said shoulder portion of the respective extension arm. 6.The spectacles set, as recited in claim 4, wherein each of said magneticseats having a L-shaped cross section defines a sidewall to bias againstsaid shoulder portion of said respective extension arm, wherein saidmagnet is received at said sidewall of said magnetic housing tomagnetically engage with said shoulder portion of said respectiveextension arm.
 7. The spectacles set, as recited in claim 3, whereineach of said magnetic seats, having a U-shaped cross section, isdownwardly and suspendedly affixed to said rear end of said respectivesupporting arm to fittedly engage with said shoulder portion of saidrespective extension arm.
 8. The spectacles set, as recited in claim 3,wherein each of said magnetic seats having a L-shaped cross sectiondefines a sidewall to bias against said shoulder portion of saidrespective extension arm, wherein said magnet is received at saidsidewall of said magnetic housing to magnetically engage with saidshoulder portion of said respective extension arm.
 9. The spectaclesset, as recited in claim 1, wherein each of said extension arms is bentto form an angled neck portion between said distal end and said root endportion to magnetically engage with said respective magnetic seat, so asto magnetically mount said detachable shelter frame in front of saidprimary spectacle frame.
 10. The spectacles set, as recited in claim 9,wherein said two supporting arms are in L-shaped and extended from saidshelter frame to ride on said primary bridge, wherein said two magneticseats comprises a magnetic housing extended from a rear end of saidrespective supporting arm towards said respective extension arm and amagnet mounted in said magnetic housing which is arranged to face towardand align with said angled neck portion of said respective extension armof said nose support when said detachable shelter frame is mounted infront of said primary spectacle frame.
 11. The spectacles set, asrecited in claim 10, wherein each of said magnets has a thicknesssmaller than a depth of said respective magnetic housing to define anengaging groove when said magnet is embedded in said magnetic housingfor fittedly engaging with said angled neck portion of said respectivenose support.
 12. The spectacles set, as recited in claim 11, whereineach of said magnetic housings further has at least an edge openingformed at a surrounding wall thereof to communicate with said engaginggroove for fittedly interlocking with said angled neck portion of saidrespective extension arm so as to securely mount said detachable shelterframe in front of said primary spectacle frame.
 13. The spectacles set,as recited in claim 1, wherein said two supporting arms are in L-shapedand extended from said shelter frame to ride on said primary bridge,wherein said two magnetic seats comprises a magnetic housing extendedfrom a rear end of said respective supporting arm towards saidrespective extension arm and a magnet mounted in said magnetic housingwhich is arranged to face toward and align with said distal end of saidrespective extension arm when said detachable shelter frame is mountedin front of said primary spectacle frame.
 14. The spectacles set, asrecited in claim 13, wherein each of said magnets has a thicknesssmaller than a depth of said respective magnetic housing to define anengaging groove when said magnet is embedded in said magnetic housingfor fittedly engaging with said distal end portion of said respectiveextension arm.
 15. The spectacles set, as recited in claim 1, whereinsaid two supporting arms are rearwardly extended from two lower portionsof said two inner sides of said shelter frame respectively towards saidextension arms, wherein said two magnetic seats comprises a magnetichousing extended from a rear end of said respective supporting armtowards said respective extension arm and a magnet mounted in saidmagnetic housing which is arranged to face toward and align with saidrespective extension arm of said nose support when said detachableshelter frame is mounted in front of said primary spectacle frame. 16.The spectacles set, as recited in claim 15, wherein each of said magnetshas a thickness smaller than a depth of said respective magnetic housingto define an engaging groove when said magnet is embedded in saidmagnetic housing for fittedly engaging with said shoulder portion ofsaid respective nose support.
 17. The spectacles set, as recited inclaim 16, wherein each of said magnetic seats, having a U-shaped crosssection, is rearwardly and suspendedly affixed to said rear end of saidrespective supporting arm to fittedly engage with said respectiveextension arm.
 18. The spectacles set, as recited in claim 17, whereinsaid shelter frame further comprises a bridge clip extended between saidtwo auxiliary lenses for detachably riding on said primary bridge so asto securely mount said detachable shelter frame in front of said primaryspectacle frame.
 19. The spectacles set, as recited in claim 16, whereinsaid shelter frame further comprises a bridge clip extended between saidtwo auxiliary lenses for detachably riding on said primary bridge so asto securely mount said detachable shelter frame in front of said primaryspectacle frame.
 20. The spectacles set, as recited in claim 15, whereineach of said magnetic seats, having a U-shaped cross section, isrearwardly and suspendedly affixed to said rear end of said respectivesupporting arm to fittedly engage with said respective extension arm.21. The spectacles set, as recited in claim 1, wherein said twosupporting arm are integrally extended from said two inner sides of saidauxiliary lenses towards said nose supports, wherein each of saidmagnetic seats comprises a magnetic housing provided at an outer side ofsaid respective supporting arm and a magnet mounted in said magnetichousing, which is arranged to face toward and align with said root endportion of said respective nose support when said detachable shelterframe is mounted in front of said primary spectacle frame.
 22. Thespectacles set, as recited in claim 21, wherein said shelter framefurther comprises a bridge clip extended between said two auxiliarylenses for detachably riding on said primary bridge so as to securelymount said detachable shelter frame in front of said primary spectacleframe.